== Goal ==
Got a way to define sort of agregation service for host services.



== Sample 1 ==

<code>
define host{

   _disks   /,/var,/backup

}

define service {
   register 0
   description  Disk $KEY$
   check_command   check_disk!$KEY$
}

define service {
   description All Disks
   check_command   bp_rule!., Disk $_HOSTDISKS$
}
</code>

==> ok this version sucks, we cannot parse this:
<code>bp_rule!., Disk /,/var/backup</code>

== version 2 (tag based agregation) ==

<code>
define host{
   name template
   register 0
}

define host{
   host_name host1
   use template
   _disks    /,/var,/backup
}

define service {
   register 0
   description  Disk $KEY$
   check_command   check_disk!$KEY$
   duplicate_foreach _disks
   business_rule_aggregate disks
}

define service {
   description All Disks
   host_name anyhost
   check_command   bp_rule!host1,a:disks
}

define service {
   description All Disks template based
   host_name template
   check_command   bp_rule!,a:disks
   register 0
}
</code>
